<template>
  <div class="login">
    <div class="login-banner">
      <div class="login-bg"></div>
      <div class="form-box">
        <div class="logo"></div>
        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
          <el-form-item prop="username">
            <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
            </el-input>

            <i class="icon user"></i>
          </el-form-item>
          <el-form-item prop="password">
            <el-input v-model="loginForm.password" type="password" auto-complete="off" placeholder="密码"
              @keyup.enter.native="handleLogin">
            </el-input>
            <i class="icon psd"></i>
          </el-form-item>
          <el-form-item prop="code" v-if="captchaEnabled">
            <el-input v-model="loginForm.code" auto-complete="off" placeholder="验证码" style="width: 63%"
              @keyup.enter.native="handleLogin">
            </el-input>
            <i class="icon code"></i>
            <div class="login-code">
              <img :src="codeUrl" @click="getCode" class="login-code-img" />
            </div>
          </el-form-item>
          <el-checkbox v-model="loginForm.rememberMe" style="margin: 0px 0px 25px 0px">记住密码</el-checkbox>
          <el-form-item style="width: 100%">
            <el-button :loading="loading" size="medium" type="primary" style="width: 100%" class="login-btn"
              @click.native.prevent="handleLogin">
              <span v-if="!loading">登 录</span>
              <span v-else>登 录 中...</span>
            </el-button>
            <!-- <div style="float: right" v-if="register">
              <router-link class="link-type" :to="'/register'"
                >立即注册</router-link
              >
            </div> -->
          </el-form-item>
        </el-form>
      </div>
    </div>
  </div>
</template>

<script>
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from "@/utils/jsencrypt";

export default {
  name: "Login",
  data() {
    return {
      codeUrl: "",
      loginForm: {
        username: "",
        password: "",
        rememberMe: false,
        code: "",
        uuid: "",
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "请输入您的账号" },
        ],
        password: [
          { required: true, trigger: "blur", message: "请输入您的密码" },
        ],
        code: [{ required: true, trigger: "change", message: "请输入验证码" }],
      },
      loading: false,
      // 验证码开关
      captchaEnabled: true,
      // 注册开关
      register: false,
      redirect: undefined,
    };
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true,
    },
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  methods: {
    getCode() {
      getCodeImg().then((res) => {
        this.captchaEnabled =
          res.captchaEnabled === undefined ? true : res.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.img;
          this.loginForm.uuid = res.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get("rememberMe");
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password:
          password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, { expires: 30 });
            Cookies.set("password", encrypt(this.loginForm.password), {
              expires: 30,
            });
            Cookies.set("rememberMe", this.loginForm.rememberMe, {
              expires: 30,
            });
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove("rememberMe");
          }
          this.$store
            .dispatch("Login", this.loginForm)
            .then(() => {
              this.$router.push({ path: this.redirect || "/" }).catch(() => { });
            })
            .catch(() => {
              this.loading = false;
              if (this.captchaEnabled) {
                this.getCode();
              }
            });
        }
      });
    },
  },
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  width: 100vw;
  height: 100vh;
  background: url("../assets/images/login-bg.png") no-repeat center;
  background-size: cover;
  display: flex;
  align-items: center;

  .login-banner {
    width: 90%;
    height: 90%;
    background: url("../assets/images/login-banner.png") no-repeat center;
    background-size: cover;
    margin: 0 auto;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 136px;
    box-sizing: border-box;

    .login-bg {
      width: 600px;
      height: 460px;
      background: url("../assets/images/login-banner-bg.png") no-repeat center;
      background-size: contain;
    }

    .form-box {
      width: 580px;
      height: 80%;
      background: rgba(247, 249, 253, 0.8);
      border-radius: 30px;
      margin-left: 150px;
      padding: 50px 60px;
      box-sizing: border-box;

      .logo {
        width: 322px;
        height: 45px;
        background: url("../assets/images/logo.png") no-repeat center;
        background-size: contain;
        margin: 0 auto;
      }

      .el-form {
        margin: 50px 0;

        .el-form-item {
          position: relative;

          .el-input--medium .el-input__inner {
            background: #fff;
            border-radius: 30px;
            height: 50px;
            padding: 0 50px;
          }
        }

        .icon {
          width: 24px;
          height: 24px;
          position: absolute;
          top: 50%;
          left: 20px;
          transform: translateY(-50%);

          &.user {
            background: url("../assets/images/login-user.png") no-repeat center;
            background-size: contain;
          }

          &.psd {
            background: url("../assets/images/login-psd.png") no-repeat center;
            background-size: contain;
          }

          &.code {
            background: url("../assets/images/login-psd.png") no-repeat center;
            background-size: contain;
          }
        }

        .login-code {
          width: 33%;
          height: 56px;
          float: right;
          margin-top: -4px;

          img {
            cursor: pointer;
            vertical-align: middle;
            height: 100%;
            width: 100%;
            object-fit: contain;
          }
        }

        .login-btn {
          height: 50px;
          border-radius: 30px;
        }
      }
    }
  }
}

// .title {
//   margin: 0px auto 30px auto;
//   text-align: center;
//   color: #707070;
// }

// .login-form {
//   border-radius: 6px;
//   background: #ffffff;
//   width: 400px;
//   padding: 25px 25px 5px 25px;
//   z-index: 1;
//   .el-input {
//     height: 38px;
//     input {
//       height: 38px;
//     }
//   }
//   .input-icon {
//     height: 39px;
//     width: 14px;
//     margin-left: 2px;
//   }
// }
// .login-tip {
//   font-size: 13px;
//   text-align: center;
//   color: #bfbfbf;
// }
// .login-code {
//   width: 33%;
//   height: 38px;
//   float: right;
//   img {
//     cursor: pointer;
//     vertical-align: middle;
//   }
// }
// .el-login-footer {
//   height: 40px;
//   line-height: 40px;
//   position: fixed;
//   bottom: 0;
//   width: 100%;
//   text-align: center;
//   color: #fff;
//   font-family: Arial;
//   font-size: 12px;
//   letter-spacing: 1px;
// }
// .login-code-img {
//   height: 38px;
// }</style>
